吉林大学学报(工学版) ›› 2024, Vol. 54 ›› Issue (6): 1548-1554.doi: 10.13229/j.cnki.jdxbgxb.20220878

• 材料科学与工程 • 上一篇    

软质炭黑对天然橡胶基磁流变弹性体性能的影响

李义1(),刘天宝1,王绍强2(),梁继才1   

  1. 1.吉林大学 材料科学与工程学院，长春 130022
    2.长春大学 计算机科学技术学院，长春 130022
  • 收稿日期:2022-07-12 出版日期:2024-06-01 发布日期:2024-07-23
  • 通讯作者: 王绍强 E-mail:henrylee@jlu.edu.cn;wangsq@ccu.edu.cn
  • 作者简介:李义（1974-），男，教授，博士.研究方向：新材料及加工工程.E-mail： henrylee@jlu.edu.cn
  • 基金资助:
    吉林省重点研发计划项目(20200401035GX)

Effect of soft carbon black on properties of natural rubber-based magnetorheological elastomers

Yi LI1(),Tian-bao LIU1,Shao-qiang WANG2(),Ji-cai LIANG1   

  1. 1.College of Materials Science and Engineering，Jilin University，Changchun 130022，China
    2.School of Computer Science and Technology，Changchun University，Changchun 130022，China
  • Received:2022-07-12 Online:2024-06-01 Published:2024-07-23
  • Contact: Shao-qiang WANG E-mail:henrylee@jlu.edu.cn;wangsq@ccu.edu.cn

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摘要：

以天然橡胶为基体，使用软质炭黑和羰基铁粉制备了4种磁流变弹性体，探究了软质炭黑和磁性粒子含量对其性能的影响。使用场发射扫描电子显微镜观察其微观结构，采用电子式万能试验机和高级旋转流变仪观察分析其力学性能和磁流变效应。结果表明：软质炭黑的加入提高了磁流变弹性体的拉伸强度和300%的定伸拉力，改变了在低应变情况下磁流变弹性体的Mullins效应；羰基铁粉体积分数为30%的磁流变弹性体在添加软质炭黑后，其磁流变效应提高了3倍。因此，软质炭黑作为补强剂可以大幅提高磁流变弹性体的各项性能。

关键词: 磁流变弹性体, 软质炭黑, 力学测试, 微观结构, 补强剂

Abstract:

Using natural rubber as the matrix， four magnetorheological elastomers （MREs） were fabricated using soft carbon black and carbonyl iron powder. Their microstructures were observed by using the field emission scanning electron microscope （SEM）， and their mechanical properties including magnetorheological（MR）effects were observed and analyzed by the electronic universal testing machine and the advanced rotational rheometer. Experimental results show that the addition of carbon black increases the tensile strength and 300% constant tensile force of MREs. Furmore the carbon black changes the Mullins effect of MREs under low strain conditions， and MREs with the carbonyl iron powder content of 30% volume fraction increased their MR effect by three times after the addition of carbon black. The performance of MREs can be improved greatly by using soft carbon black as a reinforcing agent.

Key words: magnetorheological elastomers, soft carbon black, microstructures, mechanical performances, reinforce agent

中图分类号: 

  • TG386

表1

所制备样品的单位体积分数 (%)"

样品组成样品1样品2样品3样品4
羰基铁粉/%0153030
炭黑体积/%1010100
橡胶基体和其他添加剂/%90756070

图1

场发射扫描电子显微镜"

图2

电子万能试验机和试验样品"

图3

高级旋转流变仪"

图4

使用场发射扫描电子显微镜观察样品的微观结构"

图5

不同样品的力学性能柱状图"

图6

单轴循环测试的拉伸曲线"

图7

不同组分试样在变化磁感应强度下的剪切储能模量"

表2

不同样品的磁流变效应"

样品G0/MPaGmax/MPa（Gmax- G0）/ G0（%）
10.3580.371<4
21.4101.5328.65
31.9442.72340.07
41.6231.83413.91
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